keutzsch



(No Model.)

. 2 Sheets-Sheet -2f W. K RUTZSGH. HYDRAULIC AGGUMULATOR.

'No. 50s

Patented Aug. 8, 18943.

PATENT Enron..

UNITED STAT-Es WILLIAM KRUTZSOH, OF DAYTON, OHIO, ASSIGNOR TO TI-lE BUOKEYE IRON AND BRASS WORKS, OF SAME PLACE.

HYDRAULIC ACCUMU'LATOR.

SPECIFICATION forming part of Letters Patent No. 503,091, dated August 8, 1893.

A Application filed March 11, 1893. Serial No. 465,587. (No model.)

To all whom itam/ay concern:

Be it known that I, WILLIAM KRU'rzscH, a citizen of the United States, residing at Dayton, in the county of Montgomery and State 5 of Ohio, have invented :newl and useful Improvements in Hydraulic Accumulators, of

which the following is a specification.

This invention has for its object to provide a new and improved regulating mechanism 1o particularly designed for hydraulic accumulators for the purpose of regulating hydraulic presses, mills and like apparatus for pressing oil cakes and for other purposes.

The invention consists in certain features x5 of construction and novel combinations of parts in a hydraulic accumulator and its regulator mechanism for controlling the action of a pump by which the press or mill is supplied with working fluid, as hereinafter dezo scribed and claimed.

In the annexed drawings illustrating the invention,-Figure 1, is a view showing the low pressure accumulator in elevation vand the high' pressure accumulator in vertical secz 5 tion. Fig. 2, is a vertical transverse section on the line 22, of Fig. 3. Fig. 3, is a partly sectional plan. Fig. 4, is an enlarged side f-elevation of the regulator. Fig. 5, is an end elevation of the same. Fig. 6, is a sectional 3o 'side elevation of the same. Fig. 7, is a plan of the regulator. Fig. 8, is an elevation of a tubular vertically sliding portion of the regulator. Fig. 9, is a View of the same at a right angle to Fig. 8. Fig. 10, shows a plan and 3 5 Section of an annular plate or turntable forming p art of the regulator mechanism. Fig. l1, shows an end view and a longitudinal section of a grooved roller.

Referring to Figs. 1, 2 and 3 the numeral 1,

4e designates a base' plate supported on a masonry foundation and provided at its opposite ends with columns 2 which are connected by a cross beam 3 at the top.

411 designates the cylinder of the high press- 45 ure accumulator and 41, the cylinder of the low pressure accumulator. Each of these cylinders is'closed at the top and open at its lower end to receive a stationary plunger 5h, or 51' fixed to the base plate. The plungers are 5o of tubular form, as shown in Fig. 1, to aord an inlet and outlet for passage of oil, water or other working iluid to and from the vertically movable cylinders. At its lower end each cylinder is provided with an annular flange 6 to support sectional cast iron weights 7, of 55 segmental form that will permit them to be readily removed and replaced as required. On the base plate k1 are placed wooden blocks or bumpers 8 to receive the impactA of the weighted cylinders when they descend and to 6o support them in their lowest positions.

l To the top of each accumulator cylinder is secured a vertical rod or shaft 9 which is eX- tended through a liangcd boss 10 on the cross beam 3, as shown in Fig. 6. The boss 10 is 65 located on the upper side'of the cross beam 3 and is provided at its upper end with an annular liange 11, Figs. 3, 5 and 6.

Extended vertically through perforations in the body of each boss 10 are two lift pins 7o 12 the heads of which rest on the top of the boss while their lower ends are suspended on opposite sides of the rod or shaft 9, below the cross beam. On each rod or shaft 9, below the pins l2 is a set collar 13 which may be 75 adjusted at any height to act on said lift pins at any required point in the travel of the accumulator cylinder.

Above the boss 10 each cylinder rod or shaft 9 is surrounded by a tubular vertically 8o sliding guide casting 14 Figs. 8 and 9, the lower end of which normally rests on the heads of the lift pins 12, as shown in Fig. 6. On the 4upper end of each tubular guide 14 are two perforated lugs 14, between lwhich is pivot- 85 ally supported the upper end of an inclined bar 15, Figs. 4 and 6, which I term a wedgebar. The lower portion of each tubular guide 14 is provided with a pair of parallel curved arms 14b each of which is provided with a se- 9o ries of perforations to receive a pin 16 passed through the lower end of the wedge bar 15 and by which it can be adjustably supported between said arms'at any desired inclination.

On the flanged upper end of the boss 10, 95 outside the lower end of the tubular guide 14, is supported an annular plateor turntable 17, Fig. 10, having two lugs 18 which project below and outside the arms 14b of the tubular guide. plate 17 is an annular T-groove 19 which en'- ables said plate to be secured to the ange 11 In the under side of this annular Ioo z 5 be stopped.

65 tion.

of the boss l by means of bolts 20, Fig. G in such manner that the plate can be turned or adjusted in any direction to bring the lugs 1S into any required position. The lugs 18 of the adjustable annular plate 17 aiford piv otal support for the lower ends of a pair of swinging radius bars 21 between the upper ends of which is journaled a roller 22, Fig. 11, having a circumferentially grooved pexo riphery with which the wedge bar isadapted to be engaged. The grooved roller 22 is mounted loosely on a pin or shaft 23 supported in the upper ends of the swinging radius bars 2l and having its ends projecting x5 beyond the same a sufticient distance to be engaged in the open end of a yoke or U- shaped strap 24, Fig. 7, having an eye for attachment of one end of a chain or flexible connection 26, Figs. 1 and 3, which connects 2o with a valve orother movable part of apu mp,

3o cylinders 411 and 41, are arranged to rise and fall with the admission and exit of fluid. These inverted vertically movable cylinders are of great weight independent of the addi tional weights 7 that are placed thereon, so

that when the pump is stopped and the oil or other fluid flows out from the accumulator to a press or mill the cylinders will readily descend.

The vertical rods or shafts 9 carried by the 4o accumulator cylinders serve as guides to keep the cylinders steady in their up and down movements.

When either cylinder 4h or 41, rises under the pressure exerted by the fluid admitted thereto through the tubular plunger, the rod or shaft 9 in moving upward will carry its collar 13 into lifting contact with the lower ends of the lift pins 12 which will in turn lilt the tubular guide 14 and carry the attached 5o wedge bar 15 into frictional engagement with the grooved roller 22 of the regulator mechanism in such a manner as to force said roller andthe supporting radius bars 21 outward or away from the tubular guide 1.4 thereby moving the yoke 24 longitudinally and causing it to draw on the chain 26 so as to stop the pump. The pump being stopped and the pressure on the fluid in the accumulator thereby relieved so that it will flow outward to supply the re- 6o quirements of the mill or press, the cylinder will descend, and the guide 14 and wedge bar 15 will drop to normal position, thereby releasing the roller 22, yoke 24 and chain 2G so as to permit the pump to resume its opera- By giving the lower end of the wedge bar 15 a proper adjustment between the perforated arms 14b the inclination of the wedge manen.

bar can be varied so as to increase or lessen the pull on the chain 26, as occasion may require; and by adjusting the set collar 13 on the shaft 9, up or down, it may be made to act on the regulator at any desired point in the travel of the accumulator cylinder. By means of the adjustably mounted annular plate 17 with its lugs 18 and attached radius bars 2l projecting on each side of the wedge bar 15 and its supporting arms 14b the regulator mechanism, including the guide 14, wedge bar 15, roller 22 and yoke 24 may be turned in any direction to permit the chain to be led off to the pump directly and by the shortest route.

It will be seen that by the mechanism described a simple and reliable means is af forded for automatically controlling the operation of the hydraulic press or mill.

What I claim as my invention is* l, ln a hydraulic accumulator, the combination with a reciprocating cylinder and a guide rod or shaft attached thereto, of a tubular sliding guide surrounding a portion of said rod or shaft,lift pins on which said tubular guide is normally supported, a wedge bar carried by the sliding guide, a swinging support having a roller mounted therein in position to be engaged by the wedge bar,a chain connected with said roller to stop a pump from which the accumulator cylinder is supplied with working fluid, and a collar mounted on the cylinder guide rod or shaft to actuate the lift pins and tubular guide and thereby cause the wedge bar to engage the roller and pull the chain, substantially as described.

2. In a hydraulic accumulator, the combination of a vertically movable cylinder, a sliding guide adapted to be lifted by the cylinder, a wedge bar carried by said sliding guide, a swinging support having a roller mounted therein in position to be engaged by the wedge bar, and a chain connected with said roller and adapted to be pulled when the roller is swung outward, to stop a pump or engine from,

which the accumulator cylinder is supplied with working fluid, substantially as described.

3. In a hydraulic accumulator, the combination of a weighted vertically movable cylinder, a stationary tubular plunger constituting an inlet and exit for working fluid to and from said cylinder, a sliding guide adapted to be lifted by the cylinder, a wedge bar carried by said sliding guide, a swinging support having a roller mounted therein in position to be engaged by the wedge bar and a connection leading from said roller to a pump or engine from which the accumulator cylinder is supplied with working fluid, whereby the pump or engine is stopped when the cylinder lifts the wedge bar into engagement with the roller, substantially as described.

4. In a hydraulic accumulator, the combination of an inverted vertically movable cylinder, a stationary tubular plunger constituting an inlet and `exit for working fluid, a guide rod or shaft carried by the cylinder and pro- IOO I IO

vided with an adjustable collar, a cross beam having a boss through which the cylinder guide rod isextended, lift pins suspended in said boss and having their lower ends in the path of the collar on the cylinder guide rod, a tubular sliding guide supported on said lift pins and carryinga Wedge bar, a roller mounted in a swinging support in position to be engaged by the wedge bar, and a flexible connection leading from said roller to the pump or engine from which the accumulator cylinder is supplied with working iiuid and through which said pump is stopped when the cylinder lifts the wedge bar into engagement with the roller, substantially as described.

5. In a hydraulic accumulator, the combination with an inverted vertically movable cylinder having a guide rod provided with an adjustable collar, of a cross beam having a boss through which said guide rod is extended, lift pins suspended in said boss in the path of the collar on the guide rod, a slidingtubular guide supported on the lift pins and provided with an adjustable Wedge bar, an adjustable annular plate supported on the boss of the cross-beam and provided with a pair of lugs, radius bars having their lower ends pivoted to said lugs, a roller journaled between the upper ends of said bars, a yoke connected with the roller shaft or journals, and a chain or flexible connection leadingfrom said yoke to a pump from which the accumulator cylinder is supplied with working fluid, substantially as described.

6. In a hydraulic accumulator, the combination with an inverted vertically movable cylinder, ot' a regulator mechanism actuated from said cylinder and comprising a swinging roller and a vertically movable Wedge bar adapted to actuate said roller, and a chain or flexible connection for connecting said roller with a pump or engine from which the accumulator is supplied with working i'luid, substantially as described.

In testimony whereof l have hereunto set my hand in presence of two subscribing witnesses.

WILLIAM KRUTZSCH.

Witnesses:

DAVID C. BENCH, JOHN L. H. FRANK. 

